<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
    <title>Document</title>
</head>
<body>
    <div id="app"></div>
    <!--<div>{{message}}</div>-->
   <template id="root">
        <div>{{message}}</div>
        <div>{{myNumber+1}}</div>
        <div>{{age>30?"中年":"青年"}}</div>
        <div>{{text}}</div>
        <div>{{showMessage()}}</div>
        </template>
    <script>
        //创建应用实例
        const app=Vue.createApp({
           // template:'div>{{message}}</div><span></span><span></span><span></span><span></span>',
           template:"#root",
           data() {
            return {
               message:'hello vue',
               myNumber:1,
               age:27,
               text:'<span>abc</span>'
            }
           },
        methods:{
            showMessage(){
                return 'hello vue3'
            }
        }
        })
       const root= app.mount("#app")
    </script>
</body>
</html>